1. Beat butter and sugar together. Add egg, vanilla, orange extract and orange juice concentrate. Mix well.2. In another bowl, combine flour, baking powder, cardamom and salt. 3. Add dry ingredients to wet, a little at a time, and mix. 4. Cover and refrigerate for an hour or more.5. Preheat oven to 375 degrees.6. On a floured surface, roll dough out to 1/8 inch thickness. Using a small, floured glass or cup rim, cut 1 1/2 inch rounds and place on ungreased cookie sheet.7. Sprinkle with sugar. Place clapper (gum drop sliced in half lengthwise or walnut piece) on the center bottom of each circle. Fold sides of the circle together over the clapper to form a three-dimensional bell shape. Place on ungreased cookie sheet.8. Bake until bottoms are lightly browned, about 10 minutes. Remove from oven and cool on cooling rack.